/*
 * Copyright 2011 Stefan Ferstl
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.code.debmavenplugin.archiver;

import java.io.File;
import java.util.Collections;
import java.util.Set;
import java.util.TreeSet;

/**
 * A simple implementation of a collecting file filter that collects
 * {@link SimpleFileArchiveEntry}s.
 */
public class SimpleCollectingFileFilter extends AbstractCollectingFileFilter<SimpleFileArchiveEntry> {

  private Set<SimpleFileArchiveEntry> files;
  private final boolean includeDirectories;
  private final boolean includeFiles;

  /**
   * Constructor.
   * @param metaData Metadata describing the files to collect.
   * @param useRelativePaths <code>true</code> to use relative paths,
   *        <code>false</code> else.
   * @param includeDirectories Include directories.
   * @param includeFiles Include files.
   */
  public SimpleCollectingFileFilter(ArchiveMetaData metaData, boolean useRelativePaths, boolean includeDirectories, boolean includeFiles) {
    super(metaData, useRelativePaths);
    this.includeDirectories = includeDirectories;
    this.includeFiles = includeFiles;
    this.files = new TreeSet<SimpleFileArchiveEntry>();
  }

  /** {@inheritDoc} */
  @Override
  protected void collectFile(File file) {
    if ((file.isDirectory() && this.includeDirectories) || (!file.isDirectory() && this.includeFiles)) {
      this.files.add(new SimpleFileArchiveEntry(file, createPath(getMetaData().getBaseDirectory(), file)));
    }
  }

  /** {@inheritDoc} */
  @Override
  public Set<SimpleFileArchiveEntry> getCollectedFiles() {
    return Collections.unmodifiableSet(this.files);
  }

}
